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超氧化物歧化酶(superoxide dismutase SOD)系统活性在所有需氧代谢细胞中出现并催化有毒性的超氧基因成为过氧化氢和分子氧的歧化作用。需氧细胞呼吸中分子氧在降解过程中产生中间物超氧基团(O_2~-)氧化基团进一步降解形成过氧化氢(H_2O_2)和羟基(OH~-)。这些活性氧(O_2~-,H_2O_2,OH~-)可损害DNA、RNA、蛋白质和磷脂,从而导致细胞结构和活性的破坏。为保护自身不受这些基团的损害,利用抗氧化物酶,如SOD、催化酶、过氧化物酶等,可以在有氧的环境中生长。根据辅基的不
Systemic activity of superoxide dismutase (SOD) occurs in all aerobic metabolic cells and catalyzes the toxic effects of superoxide dismutation of hydrogen peroxide and molecular oxygen. During the process of aerobic cell respiration, molecular oxygen (O 2 -) oxidized by intermediate oxygen species degrades to form hydrogen peroxide (H 2 O 2) and hydroxyl (OH ~ -). These reactive oxygen species (O 2 -, H 2 O 2, OH ~ -) can damage DNA, RNA, protein and phospholipids, leading to the destruction of cell structure and activity. To protect themselves from these groups damage, the use of antioxidant enzymes such as SOD, catalytic enzymes, peroxidase, etc., can grow in aerobic environment. Not based on prosthetic